Seiko Cal. 4520 - 441

The 4520-441 is a sought-after Solar piece from Seiko's golden era. Powered by the 4520 caliber with 22j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-9ab52d8a6522]

Also known as: Sportsmatic, World Timer

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

41mm

Case Thickness

12.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

110m

Dial Color

Navy

Jewels

22j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1967

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