Seiko Cal. 6177 - 331

The 6177-331 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6177 caliber with 28j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-f777cb6013bf]

Also known as: Monster, World Timer

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

36mm

Case Thickness

11.6mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

140m

Dial Color

Champagne

Jewels

28j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1998

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