Seiko Cal. 6643 - 869

This Automatic model from 1974 features a 39mm Titanium case. It features a Navy dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-aaf1cf589f2b]

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

39mm

Case Thickness

12.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Navy

Jewels

35j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1974

Related Models

• Seiko 6290-836
• Seiko 7139-401
• Seiko 6378-576
• Seiko 5279-282
• Seiko 6690-692
• Seiko 7169-659
• Seiko 4543-979
• Seiko 6229-385
• Seiko 5694-185
• Seiko 7173-474
• Seiko 7146-566
• Seiko 4510-275