Seiko Cal. 5657 - 312

Seiko 5657-312

This Automatic model from 1981 features a 35mm Stainless Steel case. Powered by the 5657 caliber with 34j jewels beating at 36,000 bph, it delivers a 71 hours power reserve. [seikata-wm-89a44fe38676]

Also known as: Sportsmatic

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
35mm
Case Thickness
9.3mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
180m
Dial Color
Burgundy
Jewels
34j
Frequency
36,000 bph
Power Reserve
71 hours
Year
1981

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seikata-wm-89a44fe38676