Seiko Cal. 4537 - 641

Seiko 4537-641

This Automatic model from 1998 features a 37mm Titanium case. With its 18mm lug width and 14.5mm profile, it sits comfortably on most wrists. [seikata-wm-48b03d7a957c]

Also known as: Sumo, Sea Horse

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
37mm
Case Thickness
14.5mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
30m
Dial Color
Cream
Jewels
26j
Frequency
21,600 bph
Power Reserve
71 hours
Year
1998

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seikata-wm-48b03d7a957c