Seiko Cal. 7031 - 816

Seiko 7031-816

This Automatic model from 1976 features a 39mm Stainless Steel case. With its 20mm lug width and 13.0mm profile, it sits comfortably on most wrists. [seikata-wm-a50f06856750]

Also known as: Sumo, Crown

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
39mm
Case Thickness
13.0mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
160m
Dial Color
Green
Jewels
36j
Frequency
36,000 bph
Power Reserve
41 hours
Year
1976

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seikata-wm-a50f06856750