Seiko Cal. 7011 - 640

The Seiko 7011-640 represents an important milestone in Seiko's 1965 lineup. Powered by the 7011 caliber with 27j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-0dcf8bc116bc]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

43mm

Case Thickness

8.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Champagne

Jewels

27j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1965

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