Seiko Cal. 6377 - 475

This Spring Drive model from 1988 features a 44mm Stainless Steel case. Powered by the 6377 caliber with 20j jewels beating at 36,000 bph, it delivers a 69 hours power reserve. [seikata-wm-577689ce7d3f]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

14.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

60m

Dial Color

Black

Jewels

20j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1988

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