Seiko Cal. 6645 - 373

This Solar model from 1966 features a 40mm Gold-Plated case. It features a Navy dial protected by a Mineral crystal and offers 150m of water resistance. [seikata-wm-ee010f0ee7d4]

Also known as: World Timer

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

13.1mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Navy

Jewels

20j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1966

Related Models

• Seiko 5253-147
• Seiko 6342-853
• Seiko 6340-314
• Seiko 5656-778
• Seiko 6213-799
• Seiko 6690-861
• Seiko 6189-163
• Seiko 3849-178
• Seiko 0718-710
• Seiko 6364-282
• Seiko 7139-852
• Seiko 4596-137