Seiko Cal. 6656 - 853

This Spring Drive model from 1966 features a 44mm Stainless Steel case. It features a Navy dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-0609e39d94ec]

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

12.0mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Navy

Jewels

33j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1966

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