Seiko Cal. 6691 - 401

The 6691-401 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6691 caliber with 28j jewels beating at 21,600 bph, it delivers a 69 hours power reserve. [seikata-wm-178317faa37a]

Also known as: Rally

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

34mm

Case Thickness

12.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

70m

Dial Color

White

Jewels

28j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1997

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