Seiko Cal. 5631 - 746

Released in 1986, the Cal. 5631 with design code 746 was part of Seiko's domestic market collection. It features a Green dial protected by a Hardlex crystal and offers 70m of water resistance. [seikata-wm-f1ea7c1f3c35]

Also known as: Bellmatic

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

38mm

Case Thickness

15.6mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Green

Jewels

34j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1986

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