Seiko Cal. 0723 - 550

The Seiko 0723-550 represents an important milestone in Seiko's 1995 lineup. Powered by the 0723 caliber with 25j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-b67626a7d1ab]

Also known as: Samurai, UFO

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

9.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Navy

Jewels

25j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1995

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