Seiko Cal. 3857 - 320

This Solar model from 1967 features a 40mm Stainless Steel case. With its 21mm lug width and 13.9mm profile, it sits comfortably on most wrists. [seikata-wm-a3e3ee269c69]

Also known as: Monster, Rally

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

13.9mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

60m

Dial Color

White

Jewels

31j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1967

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