Seiko Cal. 0731 - 406

Released in 1966, the Cal. 0731 with design code 406 was part of Seiko's domestic market collection. It features a Cream dial protected by a Acrylic crystal and offers 140m of water resistance. [seikata-wm-609dbfe0ac6f]

Also known as: Samurai

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

39mm

Case Thickness

14.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Cream

Jewels

24j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1966

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