Seiko Cal. 4521 - 660

The 4521-660 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4521 caliber with 22j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-d96eb173ddc9]

Also known as: Samurai, Rally

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

46mm

Case Thickness

10.6mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

150m

Dial Color

Champagne

Jewels

22j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1994

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