Seiko Cal. 4578 - 631

The 4578-631 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4578 caliber with 18j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-c2b5f6821634]

Also known as: Panda

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

35mm

Case Thickness

10.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Silver

Jewels

18j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1988

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