Seiko Cal. 6634 - 676

This Spring Drive model from 1997 features a 44mm PVD Black case. Powered by the 6634 caliber with 29j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-9a729181d3f1]

Also known as: Helmet, Flighty

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

10.7mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

170m

Dial Color

Silver

Jewels

29j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1997

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