Seiko Cal. 6389 - 748

The 6389-748 is a sought-after Solar piece from Seiko's golden era. Powered by the 6389 caliber with 34j jewels beating at 36,000 bph, it delivers a 69 hours power reserve. [seikata-wm-085971b023b0]

Also known as: Navigator, Baby Tuna

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

8.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Green

Jewels

34j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1978

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