Seiko Cal. 6635 - 951

This Spring Drive model from 1977 features a 34mm PVD Black case. Powered by the 6635 caliber with 34j jewels beating at 36,000 bph, it delivers a 43 hours power reserve. [seikata-wm-b281ba87eabb]

Also known as: Turtle, Crown

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

13.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Burgundy

Jewels

34j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1977

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