Seiko Cal. 4448 - 445

The 4448-445 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4448 caliber with 34j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-3ae571077c9c]

Also known as: Bellmatic, Emperor

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

42mm

Case Thickness

11.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1974

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