Seiko Cal. 6690 - 142

Released in 1975, the Cal. 6690 with design code 142 was part of Seiko's domestic market collection. It features a Navy dial protected by a Sapphire crystal and offers 190m of water resistance. [seikata-wm-bb25fe37f801]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

14.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

190m

Dial Color

Navy

Jewels

31j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1975

Related Models

• Seiko 7072-369
• Seiko 6212-241
• Seiko 5641-787
• Seiko 3884-652
• Seiko 6366-710
• Seiko 6686-343
• Seiko 5638-145
• Seiko 0718-821
• Seiko 5644-893
• Seiko 6651-838
• Seiko 5252-551
• Seiko 6271-774