Seiko Cal. 6636 - 680

This Hand-Winding model from 1979 features a 43mm Titanium case. Powered by the 6636 caliber with 34j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-4d2c559bb794]

Also known as: Golden Tuna, Flighty

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

43mm

Case Thickness

13.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

100m

Dial Color

Silver

Jewels

34j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1979

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