Seiko Cal. 3866 - 735

The Seiko 3866-735 represents an important milestone in Seiko's 1988 lineup. The Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-891bcfba142f]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

12.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

170m

Dial Color

Burgundy

Jewels

24j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1988

Related Models

• Seiko 3816-199
• Seiko 5234-887
• Seiko 7085-353
• Seiko 7049-116
• Seiko 5638-625
• Seiko 6344-312
• Seiko 4562-979
• Seiko 6273-267
• Seiko 6324-171
• Seiko 3834-631
• Seiko 6382-944
• Seiko 6372-931