Seiko Cal. 4440 - 720

The 4440-720 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4440 caliber with 17j jewels beating at 21,600 bph, it delivers a 65 hours power reserve. [seikata-wm-286dba2eaf90]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

45mm

Case Thickness

10.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

White

Jewels

17j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1992

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