Seiko Cal. 6390 - 251

The Seiko 6390-251 represents an important milestone in Seiko's 1969 lineup. The Coin-Edge bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-c223deafb751]

Also known as: Tuna, Silverwave

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

12.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Champagne

Jewels

24j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1969

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