Seiko Cal. 5235 - 637

The 5235-637 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5235 caliber with 28j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-aa5a94e0493e]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

34mm

Case Thickness

12.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

120m

Dial Color

Cream

Jewels

28j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1965

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