Seiko Cal. 0731 - 999

The Seiko 0731-999 represents an important milestone in Seiko's 1976 lineup. Powered by the 0731 caliber with 23j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-6222bdb3a2be]

Also known as: Silverwave

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

44mm

Case Thickness

12.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1976

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