Seiko Cal. 4448 - 392

The Seiko 4448-392 represents an important milestone in Seiko's 1970 lineup. Powered by the 4448 caliber with 31j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-cc4965b8c0ae]

Also known as: Turtle, Arnie

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

8.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

80m

Dial Color

Green

Jewels

31j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1970

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