Seiko Cal. 3816 - 767

The Seiko 3816-767 represents an important milestone in Seiko's 1983 lineup. The Inner Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-51ad166cf851]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

15.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Navy

Jewels

20j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1983

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