Seiko Cal. 0728 - 928

The 0728-928 is a sought-after Spring Drive piece from Seiko's golden era. It features a Burgundy dial protected by a Sapphire crystal and offers 110m of water resistance. [seikata-wm-8837c4314de8]

Also known as: Sumo, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

11.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Burgundy

Jewels

34j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1967

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