Seiko Cal. 6390 - 370

Released in 1996, the Cal. 6390 with design code 370 was part of Seiko's domestic market collection. The Bidirectional bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-b6cc3cb8b93c]

Also known as: Helmet, World Timer

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

45mm

Case Thickness

11.6mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Green

Jewels

34j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1996

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