Seiko Cal. 5646 - 211

The 5646-211 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5646 caliber with 17j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-de7d7d0de73e]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

36mm

Case Thickness

12.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Cream

Jewels

17j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1977

Related Models

• Seiko 5227-691
• Seiko 6352-621
• Seiko 4564-943
• Seiko 6227-548
• Seiko 0735-427
• Seiko 7066-284
• Seiko 5225-241
• Seiko 7166-339
• Seiko 6335-279
• Seiko 6671-951
• Seiko 7027-690
• Seiko 5631-787