Seiko Cal. 5638 - 299

The 5638-299 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5638 caliber with 30j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-5d85fab188df]

Also known as: Tuna, Pogue

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

45mm

Case Thickness

11.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Cream

Jewels

30j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1985

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