Seiko Cal. 6378 - 993

The 6378-993 is a sought-after Solar piece from Seiko's golden era. The Inner Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-56fee30bf11f]

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

43mm

Case Thickness

10.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Navy

Jewels

25j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1983

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