Seiko Cal. 6647 - 546

The 6647-546 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6647 caliber with 32j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-6f03f34414ef]

Also known as: Crown

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

45mm

Case Thickness

10.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Green

Jewels

32j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1967

Related Models

• Seiko 7054-169
• Seiko 4432-428
• Seiko 7189-835
• Seiko 7132-395
• Seiko 6145-233
• Seiko 7164-423
• Seiko 3896-235
• Seiko 5226-206
• Seiko 6127-176
• Seiko 7139-623
• Seiko 4557-549
• Seiko 3846-117