Seiko Cal. 3877 - 651

The Seiko 3877-651 represents an important milestone in Seiko's 1969 lineup. Powered by the 3877 caliber with 31j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-69c68e581321]

Also known as: UFO, Baby Tuna

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

14.3mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

100m

Dial Color

Burgundy

Jewels

31j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1969

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