Seiko Cal. 3857 - 440

This Spring Drive model from 1966 features a 43mm PVD Black case. With its 21mm lug width and 10.7mm profile, it sits comfortably on most wrists. [seikata-wm-b99c6fc5c606]

Also known as: Panda, Bellmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

43mm

Case Thickness

10.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Champagne

Jewels

28j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1966

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