Seiko Cal. 0731 - 604

The 0731-604 is a sought-after Spring Drive piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 60m of water resistance. [seikata-wm-09d1a3671b3d]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

38mm

Case Thickness

11.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1975

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