Seiko Cal. 6637 - 774

This Quartz model from 1971 features a 42mm Stainless Steel case. Powered by the 6637 caliber with 32j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-7a57125fa30e]

Also known as: Turtle, UFO

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

14.1mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Cream

Jewels

32j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1971

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