Seiko Cal. 4537 - 623

This Solar model from 1968 features a 42mm PVD Black case. Powered by the 4537 caliber with 20j jewels beating at 21,600 bph, it delivers a 69 hours power reserve. [seikata-wm-f8a125e715e3]

Also known as: Panda, Rally

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

42mm

Case Thickness

9.1mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

White

Jewels

20j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1968

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