Seiko Cal. 4521 - 956

The 4521-956 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4521 caliber with 20j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-a63a6c2e1861]

Also known as: Turtle, Panda

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

13.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

190m

Dial Color

Silver

Jewels

20j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1994

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