Seiko Cal. 3820 - 505

This Spring Drive model from 1989 features a 37mm PVD Black case. With its 22mm lug width and 13.7mm profile, it sits comfortably on most wrists. [seikata-wm-05640df042e1]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

13.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Silver

Jewels

33j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1989

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