Seiko Cal. 4531 - 666

The 4531-666 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Navy dial protected by a Mineral crystal and offers 130m of water resistance. [seikata-wm-d830c2f3f9c8]

Also known as: World Timer, Arnie

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

41mm

Case Thickness

13.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

130m

Dial Color

Navy

Jewels

35j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1998

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