Seiko Cal. 3816 - 104

This Spring Drive model from 1968 features a 46mm Titanium case. With its 18mm lug width and 10.9mm profile, it sits comfortably on most wrists. [seikata-wm-98630aff325b]

Also known as: Sumo, Emperor

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

46mm

Case Thickness

10.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Navy

Jewels

23j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1968

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