Seiko Cal. 5642 - 435

The 5642-435 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5642 caliber with 21j jewels beating at 21,600 bph, it delivers a 69 hours power reserve. [seikata-wm-e84c79b2835d]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

46mm

Case Thickness

11.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Burgundy

Jewels

21j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1977

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