Seiko Cal. 4516 - 721

The 4516-721 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4516 caliber with 33j jewels beating at 36,000 bph, it delivers a 45 hours power reserve. [seikata-wm-828c074f2bd3]

Also known as: Samurai, Silverwave

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

10.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Green

Jewels

33j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1992

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