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Seiko Revitalizes the Marinemaster

Seiko's Latest Creation

Seiko resurrects its revered Marinemaster collection with a fresh take for 2023. This time, the series features a blend of classic elements from the original Marinemaster and Seiko's first diver, the 62MAS, culminating in a line of watches that harmonize heritage and modernity. The new Marinemaster models, sized at 39.5mm, are available in three distinct dial colors: blue, black, and a limited-edition silver.


Seiko Marinemaster Diver 2023

The original Marinemaster, a robust diver released in 2000, boasted a 44mm monobloc case and helium-proof construction without needing a valve. While maintaining its status as a top-tier tool watch, Seiko has now opted for a more refined approach. The latest Marinemaster is downsized to 39.5mm by 12.3mm, featuring a nod to the 62MAS design and polished and brushed surfaces. It also introduces a first for Seiko divers: an exhibition caseback, though somewhat obscured by printing.


Seiko Marinemaster Black Dial

The three dial variations - blue (SJE099), black (SJE101), and limited-edition silver (SJE097) - each have horizontal grooves and minimalist branding. The inclusion of a date window at 4:30 adds functionality, and while the dial might seem busy, it gives the watch a contemporary edge.


Seiko Marine Master White Dial Limited Edition

Inside, the Marinemaster houses the Seiko caliber 6L37, an automatic movement with a 45-hour power reserve, first introduced in the Prospex SJE093 earlier this year.

The Marinemaster's new bracelet design features three rounded links with polished and brushed finishes and a push-button clasp, though it lacks a tool-free micro-adjust feature. Set to be released in December, the watches are priced at $2,800.


Our Editorial Take

Seiko's updated Marinemaster collection evokes mixed feelings, blending the nostalgia of the Marinemaster name with elements of the 62MAS. The smaller case size will likely appeal to a broader audience, though purists may question the rebranding. Despite this, the collection stands out as a modern interpretation of dive watches.


Marinemaster Bracelet

At $2,800, the Marinemaster faces stiff competition in the dive watch market. The new model contrasts with the previous SBDX017, known for its larger size and lower price point. The new Marinemaster attempts a different approach, combining aspects of Seiko's historic models in a contemporary package, which may divide opinions among enthusiasts.


Tech Specification

Seiko Marinemaster Specifications
Brand Seiko
Model Marinemaster
Reference Numbers SJE099 (Blue), SJE101 (Black), SJE097 (Limited Edition, Silver Dial)
Diameter 39.5mm
Thickness 12.3mm
Case Material Stainless Steel with Super-Hard Coating
Dial Colors Blue, Black, Silver (Limited Edition)
Crystal Sapphire
Lume Lumibrite on Hands and Indices
Water Resistance 200 Meters
Strap/Bracelet Stainless Steel with Three-Fold Clasp, Push-Button Release, Secure Lock, and Extender
Caliber 6L37 (Seiko "Slimline" Caliber)
Functions Hours, Minutes, Seconds, Date
Power Reserve 45 Hours
Thickness 3.7mm
Winding Automatic
Frequency 28,800 Beats Per Hour
Jewels 26
Accuracy +15/-10 Seconds Per Day
Price $2,800
Availability Starting December 2023
Limited Edition SJE097 (Silver) Limited to 1,000 Pieces
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