Seiko Cal. 4521 - 510

Seiko 4521-510

The 4521-510 is a sought-after Solar piece from Seiko's golden era. Powered by the 4521 caliber with 25j jewels beating at 36,000 bph, it delivers a 52 hours power reserve. [seikata-wm-4cc744041da0]

Also known as: Sportsmatic

Specifications

Movement
Solar
Case Material
Two-Tone
Case Width
39mm
Case Thickness
10.7mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
160m
Dial Color
Cream
Jewels
25j
Frequency
36,000 bph
Power Reserve
52 hours
Year
1966

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