Seiko Cal. 6390 - 252

The Seiko 6390-252 represents an important milestone in Seiko's 1977 lineup. It features a Navy dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-3835a43c840b]

Also known as: Tuna, Navigator

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

10.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Navy

Jewels

33j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1977

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