Seiko Cal. 5656 - 631

Released in 1990, the Cal. 5656 with design code 631 was part of Seiko's domestic market collection. It features a Green dial protected by a Hardlex crystal and offers 200m of water resistance. [seikata-wm-bded9dcb3f03]

Also known as: Emperor

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

15.7mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

200m

Dial Color

Green

Jewels

23j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1990

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