Seiko Cal. 4510 - 241

This Hand-Winding model from 1977 features a 34mm PVD Black case. Powered by the 4510 caliber with 18j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-876dc65ca9c3]

Also known as: UFO, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

34mm

Case Thickness

13.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

150m

Dial Color

Cream

Jewels

18j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1977

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