Seiko Cal. 3821 - 540

This Hand-Winding model from 1975 features a 42mm PVD Black case. Powered by the 3821 caliber with 36j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-b6255b461992]

Also known as: Helmet, Emperor

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

42mm

Case Thickness

9.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Champagne

Jewels

36j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1975

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