Seiko Cal. 6637 - 527

This Automatic model from 1986 features a 41mm Stainless Steel case. Powered by the 6637 caliber with 26j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-e9eb0dbbc57e]

Also known as: Golden Tuna

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

9.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

130m

Dial Color

Champagne

Jewels

26j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1986

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