Seiko Cal. 4531 - 733

The 4531-733 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4531 caliber with 29j jewels beating at 21,600 bph, it delivers a 45 hours power reserve. [seikata-wm-2cfcb4f13573]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

15.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Champagne

Jewels

29j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1992

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