Seiko Cal. 6660 - 712

The 6660-712 is a sought-after Solar piece from Seiko's golden era. Powered by the 6660 caliber with 28j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-6020d2512f35]

Also known as: World Timer, Arnie

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

34mm

Case Thickness

10.0mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Silver

Jewels

28j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1998

Related Models

• Seiko 6198-361
• Seiko 7023-122
• Seiko 5270-384
• Seiko 6347-267
• Seiko 4598-637
• Seiko 4543-633
• Seiko 6662-588
• Seiko 6319-636
• Seiko 5635-355
• Seiko 6183-724
• Seiko 6343-882
• Seiko 5659-759