Seiko Cal. 0731 - 235

Seiko 0731-235

This Automatic model from 1987 features a 37mm Hardlex-Coated Steel case. With its 18mm lug width and 13.3mm profile, it sits comfortably on most wrists. [seikata-wm-4fef3020534f]

Also known as: Sumo, Rally

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
37mm
Case Thickness
13.3mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
180m
Dial Color
Navy
Jewels
23j
Frequency
36,000 bph
Power Reserve
67 hours
Year
1987

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