Seiko Cal. 7175 - 390

The 7175-390 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 7175 caliber with 19j jewels beating at 28,800 bph, it delivers a 62 hours power reserve. [seikata-wm-e9ef71aa94a0]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

37mm

Case Thickness

8.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

190m

Dial Color

Black

Jewels

19j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1978

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