Seiko Cal. 3877 - 801

The Seiko 3877-801 represents an important milestone in Seiko's 1972 lineup. Powered by the 3877 caliber with 33j jewels beating at 21,600 bph, it delivers a 67 hours power reserve. [seikata-wm-98d3d855562f]

Also known as: Monster

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

37mm

Case Thickness

11.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

200m

Dial Color

Black

Jewels

33j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1972

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