Seiko Cal. 6223 - 728

The Seiko 6223-728 represents an important milestone in Seiko's 1977 lineup. It features a Silver dial protected by a Acrylic crystal and offers 80m of water resistance. [seikata-wm-af703c3d9ed1]

Also known as: Helmet, World Timer

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

11.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Silver

Jewels

20j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1977

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