Seiko Cal. 6635 - 975

The Seiko 6635-975 represents an important milestone in Seiko's 1971 lineup. Powered by the 6635 caliber with 35j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-99041f20a915]

Also known as: World Timer

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

38mm

Case Thickness

15.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Silver

Jewels

35j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1971

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