Seiko Cal. 4440 - 612

The Seiko 4440-612 represents an important milestone in Seiko's 1968 lineup. Powered by the 4440 caliber with 27j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-812cc2b2339d]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

35mm

Case Thickness

8.0mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

170m

Dial Color

Cream

Jewels

27j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1968

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