Seiko Cal. 5631 - 254

Released in 1981, the Cal. 5631 with design code 254 was part of Seiko's domestic market collection. It features a Champagne dial protected by a Hardlex crystal and offers 160m of water resistance. [seikata-wm-2332b8b44030]

Also known as: Navigator, Flighty

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

42mm

Case Thickness

12.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Champagne

Jewels

33j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1981

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