Seiko Cal. 6643 - 454

The 6643-454 is a sought-after Solar piece from Seiko's golden era. It features a Green dial protected by a Sapphire crystal and offers 160m of water resistance. [seikata-wm-7e7721e8f2b9]

Also known as: Samurai, World Timer

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

12.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

160m

Dial Color

Green

Jewels

35j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1977

Related Models

• Seiko 3861-947
• Seiko 6150-428
• Seiko 5252-107
• Seiko 7056-262
• Seiko 5211-433
• Seiko 4594-418
• Seiko 5657-291
• Seiko 6356-308
• Seiko 5611-909
• Seiko 5220-423
• Seiko 5650-483
• Seiko 5244-817