Watches

Seiko SPB145 Review: A Retro Dive Watch With Real Strengths and One Big Flaw

The Seiko SPB145 brings a great bezel, solid movement, and strong lume, but its bracelet and price give us pause.

Seiko SPB145 dive watch with brown dial on a leather strap

Introduction

The Seiko SPB145 is a retro-inspired dive watch that tries to balance vintage charm with modern practicality. It is part of Seiko’s 62MAS reinterpretation line, and this particular model features a brown dial that looks striking in photos. After spending a good amount of time with it on the wrist, it is clear that this watch has some genuinely impressive qualities, but it also comes with a few compromises that are hard to ignore at its price point.

Who This Watch Is For

The SPB145 is aimed at watch enthusiasts who appreciate the heritage of Seiko’s early dive watches but want something that works as a daily wearer today. Its 40mm case diameter with the bezel, and 43mm with the crown, makes it a reasonably sized watch that should fit a wide range of wrists. The lug-to-lug distance sits around 47.3mm, and the curved lugs help it wear smaller than the numbers might suggest.

Seiko SPB145 dive watch on a wrist showing its brown dial and bezel

This is a watch that feels more compact on the wrist than its dimensions imply. The lugs are short and curve downward rather than sticking out flat, which helps the watch sit comfortably even on smaller wrists. If you have been looking for a dive watch that does not overwhelm your wrist, this is worth considering.

The 20mm lug width also means you have plenty of strap options, which is useful given the issues with the stock bracelet that we will get to shortly.

Main Strengths

A Bezel That Feels Luxurious

One of the first things you notice about the SPB145 is the bezel. It rotates smoothly and sounds crisp, with a feel that ranks among the better bezels available on any watch. This is one of the most premium-feeling aspects of the watch, and it goes a long way toward justifying the price tag.

Close-up of the Seiko SPB145 bezel showing its smooth rotating action

The bezel action is confident and precise, with no wobble or play. It is the kind of detail that makes you want to keep interacting with the watch, and it sets a high bar for the rest of the package.

A Solid Movement

Inside the SPB145 is Seiko’s 6R35 movement, which is one of the brand’s higher-end automatic calibers. It offers a 70-hour power reserve, which means you can take the watch off on Friday and it will still be running on Monday morning. The accuracy has been reliable in practice, with no issues during extended wear.

The movement also includes practical features like hacking seconds, a screw-down crown, and a quick-set date function. These are the kind of details that make the watch easy to live with on a daily basis.

Legible Dial and Handset

The dial features a sunburst finish that catches light nicely, and the handset is distinct and highly legible. The thicker hour hand pairs well with the minute hand, and the design strikes a balance between vintage inspiration and modern clarity.

Seiko SPB145 lume glowing green in a dark environment

The luminous markers are surrounded by reflective rings, which makes the watch easy to read in a variety of lighting conditions even before the lume kicks in. And when it does get dark, the lume is strong and reliable, glowing brightly all night long.

Durable Daily Wearer

With 200 meters of water resistance and a sapphire crystal, the SPB145 is built to handle real-world use. It is the kind of watch you can wear without worrying about splashes, rain, or even a swim. The case is well-constructed, and the overall build quality feels solid.

Things to Consider Before Buying

The Bracelet Is a Major Letdown

The biggest issue with the SPB145 is the stock bracelet. It is genuinely disappointing, especially at this price point. The clasp feels cheap and chintzy, made from folded metal rather than anything more substantial. There is no tool-free quick adjust, no half links, and only four micro-adjustment holes, which makes getting a proper fit difficult.

The bracelet also has a pronounced curvature that forces your wrist into a specific position for comfort. For those with smaller wrists, the diver extension can dig into the wrist, making the watch uncomfortable to wear. The end links do not fit the case perfectly, and the metal finish does not match the case color, which is a noticeable issue if you care about color matching.

In practice, the bracelet cheapens the overall feel of the watch. Many owners will likely end up replacing it with an aftermarket option or a strap, which adds to the total cost of ownership.

The Brown Dial Is Not Quite What It Seems

The brown dial looks like a deep, chocolatey brown in promotional photos, but in person it leans more yellow and champagne-toned. Combined with the yellow lume pips, the overall effect is not unattractive, but it may not be what you expected. If you prefer a richer, darker brown, the black dial version might be a safer choice.

The Price Is Optimistic

At around $1,200 retail, the SPB145 is expensive. While it has some genuinely nice qualities, the price feels high when you consider the bracelet issues and the fact that you will likely need to spend more money on a replacement strap or bracelet. At around $800, this would be an easier recommendation, but at $1,200, it is harder to justify.

Seiko SPB145 on an aftermarket bracelet with a visible clasp

There are microbrands offering comparable or better specifications for less money, and Seiko’s prices have been creeping upward in recent years. The SPB145 is a fine watch, but it is not a great value at full retail.

Buying Advice

If you are drawn to the SPB145, the best approach is to avoid paying full retail. Look for discounts from authorized dealers or consider the secondary market, where prices are often more reasonable. You should also budget for an aftermarket bracelet or strap, because the stock bracelet is likely to disappoint.

The watch itself is lovely in many ways. On a good strap, it wears beautifully, the movement is solid, and the bezel feels fantastic. If you can find one at a better price and are willing to invest in a quality strap, the SPB145 can be a very enjoyable watch.

Conclusion

The Seiko SPB145 is a watch that leaves us feeling torn. It has a great bezel, a reliable movement, strong lume, and a legible dial. It wears well on a variety of wrists and feels like a quality piece in many respects.

However, the stock bracelet is a significant flaw, and the price is hard to swallow when you factor in the cost of a replacement strap. The brown dial may also not match your expectations if you were drawn to the photos.

Ultimately, the SPB145 is a very nice watch that could be great with a few changes. If you are willing to put in the extra effort and money to make it work, it can be a rewarding daily wearer. But at its current price, it is a tough recommendation for most buyers.

Product link

View more details for Seiko SPB145

This product is mentioned in the review. Check the specifications, options, and compatibility before buying.

View more details for Seiko SPB145

Further reading

Related Reviews

Selection of moonphase watches including Casio, Citizen, and Christopher Ward on dark slate surface

Watches

Best Moonphase Watches 2026: From Budget to High-End

A curated look at some of the most compelling moonphase watches across the market, from an affordable Casio to a spectacular Arnold & Son.

8/21/2026
Four Tissot watches arranged in a row on a concrete surface

Watches

Best Tissot Watches 2026: The Models Collectors Voted For

A look at the Tissot models that stood out in a collector-driven tournament, from the PRX Titanium 38 mm to the Heritage 1938.

8/21/2026
Flat-lay of several watches including a steel sports watch, dive watch, dress watch, and field watch on concrete

Watches

Best Watches Under $500 in 2026: A Brand-by-Brand Guide

A practical guide to the best watches around the $500 mark in 2026, covering mainstream Swiss and Japanese brands plus a few standout microbrands.

8/22/2026