Seiko Cal. 6687 - 230

The 6687-230 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6687 caliber with 20j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-dde0494942d2]

Also known as: Crown

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

12.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1977

Related Models

• Seiko 7062-533
• Seiko 5231-584
• Seiko 5611-191
• Seiko 7140-108
• Seiko 6217-102
• Seiko 4496-543
• Seiko 6682-687
• Seiko 4573-372
• Seiko 6617-675
• Seiko 6681-624
• Seiko 6291-399
• Seiko 5675-681