Seiko Cal. 4591 - 690

The 4591-690 is a sought-after Hand-Winding piece from Seiko's golden era. The Fixed bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-8ffb64cd2be1]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

45mm

Case Thickness

9.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

30m

Dial Color

Champagne

Jewels

23j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1988

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