Seiko Cal. 6646 - 178

The Seiko 6646-178 represents an important milestone in Seiko's 1978 lineup. Powered by the 6646 caliber with 33j jewels beating at 36,000 bph, it delivers a 54 hours power reserve. [seikata-wm-2f69ea65abe3]

Also known as: Turtle

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

45mm

Case Thickness

15.6mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

30m

Dial Color

Cream

Jewels

33j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1978

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