Seiko Cal. 6658 - 437

The Seiko 6658-437 represents an important milestone in Seiko's 1989 lineup. The Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-86efbe5a9848]

Also known as: Bullhead, Crown

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

12.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

100m

Dial Color

White

Jewels

36j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1989

Related Models

• Seiko 6316-268
• Seiko 3872-148
• Seiko 3814-500
• Seiko 5641-846
• Seiko 7121-709
• Seiko 6634-234
• Seiko 6227-100
• Seiko 5292-961
• Seiko 6215-540
• Seiko 4530-256
• Seiko 6247-317
• Seiko 4597-184