Seiko Cal. 3816 - 399

This Hand-Winding model from 1983 features a 36mm PVD Black case. Powered by the 3816 caliber with 31j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-bf47307d0dc7]

Also known as: Helmet, Flighty

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

36mm

Case Thickness

13.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Burgundy

Jewels

31j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1983

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