Seiko Cal. 4448 - 382

The 4448-382 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4448 caliber with 35j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-3dfb64bf4152]

Also known as: Tuna, Silverwave

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

12.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Silver

Jewels

35j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1973

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