Seiko Cal. 3820 - 277

This Automatic model from 1991 features a 34mm Titanium case. Powered by the 3820 caliber with 36j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-749c19e87b97]

Also known as: Sumo, Sportsmatic

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

34mm

Case Thickness

9.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

60m

Dial Color

Champagne

Jewels

36j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1991

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