Seiko Cal. 5637 - 265

The Seiko 5637-265 represents an important milestone in Seiko's 1966 lineup. Powered by the 5637 caliber with 32j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-462a52c09985]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

8.2mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Champagne

Jewels

32j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1966

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