Seiko Cal. 0720 - 524

The 0720-524 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 0720 caliber with 17j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-cf702beee59e]

Also known as: Tuna, Sportsmatic

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

45mm

Case Thickness

8.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

90m

Dial Color

Cream

Jewels

17j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1978

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