Seiko Cal. 3821 - 851

The 3821-851 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3821 caliber with 17j jewels beating at 21,600 bph, it delivers a 41 hours power reserve. [seikata-wm-f05b86b3eaf8]

Also known as: Monster, World Timer

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

10.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

160m

Dial Color

Champagne

Jewels

17j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1987

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