Seiko Cal. 4447 - 138

The Seiko 4447-138 represents an important milestone in Seiko's 1982 lineup. Powered by the 4447 caliber with 19j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-84a2116f39d1]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

40mm

Case Thickness

8.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Burgundy

Jewels

19j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1982

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