Seiko Cal. 6655 - 778

This Solar model from 1986 features a 37mm Hardlex-Coated Steel case. Powered by the 6655 caliber with 18j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-aa2c524e280e]

Also known as: Monster

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

11.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

White

Jewels

18j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1986

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