Seiko Cal. 5646 - 542

The 5646-542 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5646 caliber with 18j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-a8ab1f3e68f2]

Also known as: Shogun, UFO

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

12.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

160m

Dial Color

Cream

Jewels

18j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1998

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