Seiko Cal. 6390 - 497

This Spring Drive model from 1978 features a 40mm Two-Tone case. It features a Silver dial protected by a Mineral crystal and offers 70m of water resistance. [seikata-wm-6d1ff41283fb]

Also known as: Silverwave, Navigator

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

13.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

70m

Dial Color

Silver

Jewels

17j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1978

Related Models

• Seiko 4412-254
• Seiko 0786-200
• Seiko 7125-428
• Seiko 3813-165
• Seiko 3895-825
• Seiko 6345-328
• Seiko 4470-951
• Seiko 6135-619
• Seiko 6348-245
• Seiko 6263-886
• Seiko 7035-805
• Seiko 6276-846