Seiko Cal. 3821 - 858

This Spring Drive model from 1984 features a 42mm Titanium case. Powered by the 3821 caliber with 20j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-ba096f6b116b]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

42mm

Case Thickness

13.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Burgundy

Jewels

20j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1984

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