Seiko Cal. 6390 - 651

The Seiko 6390-651 represents an important milestone in Seiko's 1972 lineup. It features a Green dial protected by a Hardlex crystal and offers 200m of water resistance. [seikata-wm-1e54ae62115e]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

14.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

200m

Dial Color

Green

Jewels

21j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1972

Related Models

• Seiko 5625-502
• Seiko 6249-177
• Seiko 4571-782
• Seiko 6277-251
• Seiko 7191-789
• Seiko 3874-523
• Seiko 6233-474
• Seiko 4592-157
• Seiko 4466-414
• Seiko 3825-234
• Seiko 6658-988
• Seiko 0741-409