Seiko Cal. 6391 - 884

The 6391-884 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6391 caliber with 21j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-9b9f2c0ba9c6]

Also known as: Golden Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

46mm

Case Thickness

13.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Champagne

Jewels

21j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1973

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