Seiko Cal. 7173 - 552

Released in 1966, the Cal. 7173 with design code 552 was part of Seiko's domestic market collection. Powered by the 7173 caliber with 21j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-0577679e1ea9]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

11.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Silver

Jewels

21j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1966

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