Seiko Cal. 6312 - 977

The Seiko 6312-977 represents an important milestone in Seiko's 1975 lineup. It features a Green dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-b3994d3b62d4]

Also known as: Sea Horse

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

36mm

Case Thickness

9.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Green

Jewels

18j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1975

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