Seiko Cal. 6656 - 340

This Spring Drive model from 1980 features a 44mm Hardlex-Coated Steel case. It features a Cream dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-43237046a482]

Also known as: Bullhead, Arnie

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

12.6mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Cream

Jewels

23j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1980

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