Seiko Cal. 4421 - 148

The 4421-148 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4421 caliber with 25j jewels beating at 28,800 bph, it delivers a 61 hours power reserve. [seikata-wm-757bb8210ad8]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

12.7mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

150m

Dial Color

Navy

Jewels

25j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1970

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