Seiko Cal. 4591 - 321

This Hand-Winding model from 1965 features a 43mm PVD Black case. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-65fc78ce297a]

Also known as: Bellmatic, Flighty

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

43mm

Case Thickness

9.6mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1965

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