Seiko Cal. 5243 - 661

The 5243-661 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5243 caliber with 22j jewels beating at 36,000 bph, it delivers a 52 hours power reserve. [seikata-wm-7044972339f8]

Also known as: Monster, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

42mm

Case Thickness

9.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

40m

Dial Color

Black

Jewels

22j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1967

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