Seiko Cal. 6646 - 873

The Seiko 6646-873 represents an important milestone in Seiko's 1970 lineup. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-668dc67471bb]

Also known as: Turtle, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

12.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Navy

Jewels

34j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1970

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