Seiko Cal. 7170 - 525

The Seiko 7170-525 represents an important milestone in Seiko's 1975 lineup. Powered by the 7170 caliber with 21j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-8ecb1ad9e5ae]

Also known as: Navigator, Emperor

Specifications

Movement

Solar

Case Material

Titanium

Case Width

35mm

Case Thickness

10.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

110m

Dial Color

Champagne

Jewels

21j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1975

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