Seiko Cal. 6638 - 174

Released in 1965, the Cal. 6638 with design code 174 was part of Seiko's domestic market collection. Powered by the 6638 caliber with 29j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-cf67eb4f4c01]

Also known as: Bellmatic, Emperor

Specifications

Movement

Solar

Case Material

Titanium

Case Width

46mm

Case Thickness

9.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

80m

Dial Color

Green

Jewels

29j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1965

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