Seiko Cal. 5638 - 418

The 5638-418 is a sought-after Solar piece from Seiko's golden era. Powered by the 5638 caliber with 26j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-8ef88091c195]

Also known as: Monster

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

42mm

Case Thickness

12.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

170m

Dial Color

White

Jewels

26j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1977

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