Seiko Cal. 6691 - 673

This Spring Drive model from 1997 features a 40mm Titanium case. With its 21mm lug width and 13.5mm profile, it sits comfortably on most wrists. [seikata-wm-e19a9d0f03d8]

Also known as: Silverwave

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

13.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Green

Jewels

26j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1997

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