Seiko Cal. 6650 - 840

The 6650-840 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6650 caliber with 21j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-40f4052df998]

Also known as: Samurai, World Timer

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

41mm

Case Thickness

10.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Navy

Jewels

21j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1973

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