Seiko Cal. 3821 - 343

This Hand-Winding model from 1978 features a 39mm PVD Black case. With its 18mm lug width and 11.5mm profile, it sits comfortably on most wrists. [seikata-wm-62d7d1a43bcc]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

39mm

Case Thickness

11.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

160m

Dial Color

Green

Jewels

35j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1978

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