Seiko Cal. 6656 - 138

The 6656-138 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6656 caliber with 31j jewels beating at 36,000 bph, it delivers a 41 hours power reserve. [seikata-wm-85463682e35b]

Also known as: Panda, Helmet

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

35mm

Case Thickness

10.9mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Champagne

Jewels

31j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1993

Related Models

• Seiko 3831-631
• Seiko 5274-427
• Seiko 7093-831
• Seiko 6227-799
• Seiko 5279-212
• Seiko 6190-736
• Seiko 5298-158
• Seiko 5271-577
• Seiko 6688-929
• Seiko 5234-476
• Seiko 4411-755
• Seiko 3883-782