Seiko Cal. 6381 - 177

The Seiko 6381-177 represents an important milestone in Seiko's 1998 lineup. Powered by the 6381 caliber with 36j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-5ba3c1a2a676]

Also known as: Monster, Sportsmatic

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

43mm

Case Thickness

12.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Green

Jewels

36j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1998

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