Seiko Cal. 5610 - 646

The Seiko 5610-646 represents an important milestone in Seiko's 1966 lineup. Powered by the 5610 caliber with 29j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-c7c55a7762bf]

Also known as: Turtle

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

38mm

Case Thickness

15.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

40m

Dial Color

Cream

Jewels

29j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1966

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