Seiko Cal. 6396 - 644

This Quartz model from 1980 features a 45mm Hardlex-Coated Steel case. It features a Black dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-8f7052ba0ff4]

Also known as: Tuna, Silverwave

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

12.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

30m

Dial Color

Black

Jewels

23j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1980

Related Models

• Seiko 6684-469
• Seiko 4476-819
• Seiko 4582-915
• Seiko 6231-873
• Seiko 6611-512
• Seiko 5239-467
• Seiko 4493-115
• Seiko 4586-414
• Seiko 6235-635
• Seiko 6652-858
• Seiko 7025-981
• Seiko 0768-516