Seiko Cal. 4438 - 616

The 4438-616 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4438 caliber with 19j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-34cef820fe41]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

10.8mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

White

Jewels

19j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1985

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