Seiko Cal. 4438 - 497

The 4438-497 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4438 caliber with 25j jewels beating at 28,800 bph, it delivers a 52 hours power reserve. [seikata-wm-5fe76ffed182]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

42mm

Case Thickness

15.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Cream

Jewels

25j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1967

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