Seiko Cal. 6610 - 367

The Seiko 6610-367 represents an important milestone in Seiko's 1981 lineup. Powered by the 6610 caliber with 27j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-452fa6b57fe2]

Also known as: Tuna, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

12.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

190m

Dial Color

White

Jewels

27j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1981

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