Seiko Cal. 6637 - 410

This Kinetic model from 1969 features a 40mm Titanium case. Powered by the 6637 caliber with 34j jewels beating at 21,600 bph, it delivers a 72 hours power reserve. [seikata-wm-ea2b0fc9eab5]

Also known as: Monster, Golden Tuna

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

40mm

Case Thickness

15.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

120m

Dial Color

Champagne

Jewels

34j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1969

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