Seiko Cal. 6697 - 644

The 6697-644 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6697 caliber with 33j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-c5a8c014c642]

Also known as: Tuna, World Timer

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

37mm

Case Thickness

10.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

50m

Dial Color

Navy

Jewels

33j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1981

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