Seiko Cal. 0721 - 566

The 0721-566 is a sought-after Spring Drive piece from Seiko's golden era. It features a Black dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-0e5d949a3366]

Also known as: Tuna, Rally

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

14.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

60m

Dial Color

Black

Jewels

28j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1997

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