Seiko Cal. 4446 - 313

The 4446-313 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4446 caliber with 36j jewels beating at 21,600 bph, it delivers a 44 hours power reserve. [seikata-wm-1bead2a3afdc]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

35mm

Case Thickness

9.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

50m

Dial Color

Black

Jewels

36j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1978

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