Seiko Cal. 5650 - 557

This Spring Drive model from 1975 features a 35mm Titanium case. Powered by the 5650 caliber with 33j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-a391e8a1d6b9]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

35mm

Case Thickness

13.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

90m

Dial Color

Green

Jewels

33j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1975

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