Seiko Cal. 6361 - 663

The Seiko 6361-663 represents an important milestone in Seiko's 1974 lineup. Powered by the 6361 caliber with 31j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-bc372337cc50]

Also known as: Bullhead, Goldfeather

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

11.1mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Champagne

Jewels

31j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1974

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