Seiko Cal. 7170 - 631

The Seiko 7170-631 represents an important milestone in Seiko's 1965 lineup. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-d9572a38405b]

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

40mm

Case Thickness

9.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Black

Jewels

17j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1965

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