Seiko Cal. 4438 - 943

The 4438-943 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4438 caliber with 27j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-4ccce7d1b665]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

10.8mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

130m

Dial Color

Black

Jewels

27j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1972

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