Seiko Cal. 6635 - 175

The Seiko 6635-175 represents an important milestone in Seiko's 1972 lineup. Powered by the 6635 caliber with 27j jewels beating at 36,000 bph, it delivers a 63 hours power reserve. [seikata-wm-116fa35ad095]

Also known as: Tuna, Arnie

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

38mm

Case Thickness

8.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

White

Jewels

27j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1972

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