Seiko Cal. 3877 - 821

This Quartz model from 1985 features a 34mm PVD Black case. Powered by the 3877 caliber with 30j jewels beating at 28,800 bph, it delivers a 58 hours power reserve. [seikata-wm-7c0e0beff398]

Also known as: Bullhead, Helmet

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

34mm

Case Thickness

10.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

90m

Dial Color

Silver

Jewels

30j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1985

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