Seiko Cal. 4440 - 384

This Automatic model from 1965 features a 41mm Hardlex-Coated Steel case. Powered by the 4440 caliber with 19j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-75b51febbc32]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

13.2mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1965

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