Seiko Cal. 6393 - 557

The 6393-557 is a sought-after Solar piece from Seiko's golden era. Powered by the 6393 caliber with 36j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-14b68b78730c]

Also known as: Navigator, Crown

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

36mm

Case Thickness

15.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

100m

Dial Color

Cream

Jewels

36j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1978

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