Seiko Cal. 6690 - 897

The Seiko 6690-897 represents an important milestone in Seiko's 1965 lineup. Powered by the 6690 caliber with 17j jewels beating at 28,800 bph, it delivers a 72 hours power reserve. [seikata-wm-01a7e0e3fc3b]

Also known as: Goldfeather, Bellmatic

Specifications

Movement

Solar

Case Material

Titanium

Case Width

41mm

Case Thickness

9.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Green

Jewels

17j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1965

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