Seiko Cal. 0711 - 638

The 0711-638 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 0711 caliber with 33j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-db7792aa0f50]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

11.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

90m

Dial Color

White

Jewels

33j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1968

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