Seiko Cal. 6673 - 437

The 6673-437 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6673 caliber with 22j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-2b4f682f4879]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

9.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Navy

Jewels

22j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1986

Related Models

• Seiko 5621-534
• Seiko 6139-182
• Seiko 6614-647
• Seiko 3828-741
• Seiko 3848-988
• Seiko 6651-439
• Seiko 5280-203
• Seiko 6353-497
• Seiko 5226-828
• Seiko 5216-937
• Seiko 4570-210
• Seiko 6372-225