Seiko Cal. 3877 - 764

The Seiko 3877-764 represents an important milestone in Seiko's 1972 lineup. Powered by the 3877 caliber with 24j jewels beating at 36,000 bph, it delivers a 59 hours power reserve. [seikata-wm-4964105267ee]

Also known as: Monster, Navigator

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

40mm

Case Thickness

12.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

White

Jewels

24j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1972

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