Seiko Cal. 6390 - 235

The 6390-235 is a sought-after Quartz piece from Seiko's golden era. It features a Black dial protected by a Acrylic crystal and offers 50m of water resistance. [seikata-wm-6b1f86bf79d3]

Also known as: Helmet, Golden Tuna

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

42mm

Case Thickness

12.2mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Black

Jewels

34j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1981

Related Models

• Seiko 6276-588
• Seiko 4520-713
• Seiko 5271-781
• Seiko 6219-810
• Seiko 6232-816
• Seiko 3894-717
• Seiko 4494-362
• Seiko 4440-345
• Seiko 3874-693
• Seiko 6128-262
• Seiko 4512-834
• Seiko 6634-629