Seiko Cal. 6177 - 991

The Seiko 6177-991 represents an important milestone in Seiko's 1988 lineup. Powered by the 6177 caliber with 17j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-5e35b5c9bba9]

Also known as: Crown

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

15.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Navy

Jewels

17j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1988

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