Seiko Cal. 5638 - 456

The 5638-456 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5638 caliber with 23j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-a88f5201e31d]

Also known as: Sea Horse, Emperor

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

37mm

Case Thickness

10.3mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Champagne

Jewels

23j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1968

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