Seiko Cal. 6621 - 939

The Seiko 6621-939 represents an important milestone in Seiko's 1993 lineup. Powered by the 6621 caliber with 31j jewels beating at 28,800 bph, it delivers a 66 hours power reserve. [seikata-wm-227e9147c13c]

Also known as: Bullhead

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

38mm

Case Thickness

12.7mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

130m

Dial Color

Navy

Jewels

31j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1993

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