Seiko Cal. 5631 - 712

Released in 1965, the Cal. 5631 with design code 712 was part of Seiko's domestic market collection. It features a Champagne dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-9efb2ae0b784]

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

39mm

Case Thickness

8.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Champagne

Jewels

36j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1965

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