Seiko Cal. 6656 - 539

The Seiko 6656-539 represents an important milestone in Seiko's 1986 lineup. Powered by the 6656 caliber with 21j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-a0cf80453099]

Also known as: Panda, Bullhead

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

12.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

White

Jewels

21j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1986

Related Models

• Seiko 6291-781
• Seiko 5675-678
• Seiko 5245-253
• Seiko 6311-778
• Seiko 6130-636
• Seiko 6258-292
• Seiko 4486-888
• Seiko 3835-110
• Seiko 4510-959
• Seiko 4494-872
• Seiko 5689-584
• Seiko 6319-496