Seiko Cal. 4520 - 264

The Seiko 4520-264 represents an important milestone in Seiko's 1976 lineup. Powered by the 4520 caliber with 23j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-8d71929e83b9]

Also known as: Samurai, Helmet

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

15.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Silver

Jewels

23j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1976

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