Seiko Cal. 6690 - 641

The Seiko 6690-641 represents an important milestone in Seiko's 1997 lineup. It features a Green dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-502959e87217]

Specifications

Movement

Solar

Case Material

Titanium

Case Width

45mm

Case Thickness

11.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

40m

Dial Color

Green

Jewels

25j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1997

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