Seiko Cal. 4440 - 344

The 4440-344 is a sought-after Spring Drive piece from Seiko's golden era. The Coin-Edge bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-332df7464df2]

Also known as: Tuna, Helmet

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

14.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Green

Jewels

26j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1999

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