Seiko Cal. 0720 - 524

Seiko 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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