Seiko Cal. 6624 - 381

The Seiko 6624-381 represents an important milestone in Seiko's 1991 lineup. Powered by the 6624 caliber with 31j jewels beating at 28,800 bph, it delivers a 59 hours power reserve. [seikata-wm-44658dd86056]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

46mm

Case Thickness

13.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Silver

Jewels

31j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1991

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