Seiko Cal. 6388 - 503

The 6388-503 is a sought-after Solar piece from Seiko's golden era. Powered by the 6388 caliber with 19j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-7449d810a170]

Also known as: Samurai

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

43mm

Case Thickness

8.7mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

180m

Dial Color

Champagne

Jewels

19j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1966

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