Seiko Cal. 0731 - 504

The 0731-504 is a sought-after Spring Drive piece from Seiko's golden era. With its 21mm lug width and 15.0mm profile, it sits comfortably on most wrists. [seikata-wm-31f9753f375f]

Also known as: Sea Horse, Emperor

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

38mm

Case Thickness

15.0mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Navy

Jewels

21j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1995

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