Seiko Cal. 6390 - 304

The 6390-304 is a sought-after Solar piece from Seiko's golden era. It features a Green dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-f6335d82ef1d]

Also known as: Flighty

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

45mm

Case Thickness

15.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

140m

Dial Color

Green

Jewels

22j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1989

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