Seiko Cal. 6637 - 882

The Seiko 6637-882 represents an important milestone in Seiko's 1967 lineup. Powered by the 6637 caliber with 32j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-13c2c07984b2]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

8.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

140m

Dial Color

Cream

Jewels

32j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1967

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