Seiko Cal. 3863 - 720

This Hand-Winding model from 1965 features a 42mm Stainless Steel case. With its 18mm lug width and 14.4mm profile, it sits comfortably on most wrists. [seikata-wm-37f79c5544cb]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

14.4mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Silver

Jewels

34j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1965

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