Seiko Cal. 5685 - 612

Seiko 5685-612

This Automatic model from 1974 features a 36mm Gold-Plated case. Powered by the 5685 caliber with 20j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-1cd7773e7b11]

Also known as: Tuna, Sportsmatic

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
36mm
Case Thickness
9.7mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
50m
Dial Color
Green
Jewels
20j
Frequency
21,600 bph
Power Reserve
57 hours
Year
1974

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