Seiko Cal. 6388 - 940

Released in 1985, the Cal. 6388 with design code 940 was part of Seiko's domestic market collection. The Bidirectional bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-af7922def7dc]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

38mm

Case Thickness

13.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Silver

Jewels

17j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1985

Related Models

• Seiko 6379-446
• Seiko 0797-407
• Seiko 6683-277
• Seiko 5258-434
• Seiko 6222-801
• Seiko 7071-330
• Seiko 4591-929
• Seiko 5693-442
• Seiko 6275-931
• Seiko 7128-334
• Seiko 6351-619
• Seiko 6121-744