Seiko Cal. 5639 - 373

The 5639-373 is a sought-after Solar piece from Seiko's golden era. Powered by the 5639 caliber with 29j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-be5b4fc98ff8]

Also known as: Bullhead

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

12.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Silver

Jewels

29j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1984

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