Seiko Cal. 5646 - 670

The Seiko 5646-670 represents an important milestone in Seiko's 1981 lineup. Powered by the 5646 caliber with 25j jewels beating at 36,000 bph, it delivers a 65 hours power reserve. [seikata-wm-c980bb490a8a]

Also known as: Rally, Arnie

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

44mm

Case Thickness

14.5mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

100m

Dial Color

White

Jewels

25j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1981

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