Seiko Cal. 3857 - 509

This Automatic model from 1976 features a 46mm Titanium case. With its 18mm lug width and 15.8mm profile, it sits comfortably on most wrists. [seikata-wm-3537aeb2e86f]

Also known as: Sea Horse, Emperor

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

46mm

Case Thickness

15.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Navy

Jewels

25j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1976

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