Seiko Cal. 6390 - 111

Released in 1969, the Cal. 6390 with design code 111 was part of Seiko's domestic market collection. Powered by the 6390 caliber with 21j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-46f9cd25cb40]

Also known as: Helmet, Emperor

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

42mm

Case Thickness

12.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Burgundy

Jewels

21j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1969

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