Seiko Cal. 6678 - 203

Released in 1968, the Cal. 6678 with design code 203 was part of Seiko's domestic market collection. It features a Navy dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-9bb47aff3457]

Also known as: Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

34mm

Case Thickness

8.1mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Navy

Jewels

33j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1968

Related Models

• Seiko 6127-777
• Seiko 6668-618
• Seiko 5242-213
• Seiko 5214-137
• Seiko 6657-584
• Seiko 0728-989
• Seiko 4438-728
• Seiko 4464-140
• Seiko 5293-242
• Seiko 4556-423
• Seiko 4554-461
• Seiko 0739-908