Seiko Cal. 6691 - 372

The 6691-372 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6691 caliber with 31j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-f54c2f3937ea]

Also known as: Shogun

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

43mm

Case Thickness

10.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

200m

Dial Color

Black

Jewels

31j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1998

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