Seiko Cal. 0721 - 423

The Seiko 0721-423 represents an important milestone in Seiko's 1973 lineup. Powered by the 0721 caliber with 33j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-6b732da47125]

Also known as: UFO

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

38mm

Case Thickness

9.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

80m

Dial Color

Cream

Jewels

33j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1973

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