Seiko Cal. 6617 - 727

This Hand-Winding model from 1979 features a 46mm Hardlex-Coated Steel case. Powered by the 6617 caliber with 18j jewels beating at 21,600 bph, it delivers a 69 hours power reserve. [seikata-wm-358ba89518be]

Also known as: Monster

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

9.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Green

Jewels

18j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1979

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