Seiko Cal. 4448 - 201

The 4448-201 is a sought-after Solar piece from Seiko's golden era. Powered by the 4448 caliber with 24j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-310b3a9ad7ba]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

14.6mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Navy

Jewels

24j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1978

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