Seiko Cal. 3816 - 966

This Automatic model from 1970 features a 46mm Two-Tone case. The Coin-Edge bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-bd969746fa74]

Also known as: Sumo, Crown

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

46mm

Case Thickness

10.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Silver

Jewels

20j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1970

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