Seiko Cal. 5631 - 944

The 5631-944 is a sought-after Solar piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Mineral crystal and offers 110m of water resistance. [seikata-wm-50d6ab512a28]

Also known as: World Timer

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

36mm

Case Thickness

8.1mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1972

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