Seiko Cal. 4523 - 631

The 4523-631 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4523 caliber with 24j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-d9e78b4635b4]

Also known as: Rally, Emperor

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

36mm

Case Thickness

10.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1975

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