Seiko Cal. 6311 - 866

The Seiko 6311-866 represents an important milestone in Seiko's 1981 lineup. It features a Cream dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-04239b05dd7b]

Also known as: Sportsmatic, Crown

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

10.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Cream

Jewels

36j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1981

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