Seiko Cal. 3877 - 851

This Spring Drive model from 1999 features a 43mm Titanium case. Powered by the 3877 caliber with 25j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-53d3df946c3e]

Also known as: Sumo, Shogun

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

43mm

Case Thickness

10.1mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Navy

Jewels

25j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1999

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