Seiko Cal. 6665 - 231

The Seiko 6665-231 represents an important milestone in Seiko's 1966 lineup. Powered by the 6665 caliber with 24j jewels beating at 21,600 bph, it delivers a 45 hours power reserve. [seikata-wm-cd5b94505049]

Also known as: Turtle, Sportsmatic

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

44mm

Case Thickness

13.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

130m

Dial Color

Black

Jewels

24j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1966

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