Seiko Cal. 7170 - 821

The Seiko 7170-821 represents an important milestone in Seiko's 1975 lineup. The Coin-Edge bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-77f5df1ae18b]

Also known as: Monster, Crown

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

42mm

Case Thickness

14.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Champagne

Jewels

32j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1975

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