Seiko Cal. 4543 - 660

The 4543-660 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4543 caliber with 30j jewels beating at 21,600 bph, it delivers a 64 hours power reserve. [seikata-wm-7b3c39fc4742]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

14.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

White

Jewels

30j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1968

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