Seiko Cal. 6155 - 381

This Spring Drive model from 1990 features a 41mm PVD Black case. It features a Black dial protected by a Acrylic crystal and offers 70m of water resistance. [seikata-wm-7e07888f6725]

Also known as: World Timer, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

41mm

Case Thickness

8.3mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Black

Jewels

27j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1990

Related Models

• Seiko 6636-139
• Seiko 6392-240
• Seiko 6661-318
• Seiko 5655-254
• Seiko 3872-907
• Seiko 5255-731
• Seiko 4411-169
• Seiko 6231-841
• Seiko 5678-833
• Seiko 0777-234
• Seiko 6368-701
• Seiko 6363-266