Seiko Cal. 0723 - 521

The Seiko 0723-521 represents an important milestone in Seiko's 1981 lineup. It features a Champagne dial protected by a Mineral crystal and offers 200m of water resistance. [seikata-wm-28a3fb08ce0a]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

37mm

Case Thickness

12.9mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Champagne

Jewels

19j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1981

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