Seiko Cal. 7172 - 521

The Seiko 7172-521 represents an important milestone in Seiko's 1998 lineup. Powered by the 7172 caliber with 35j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-b04b5f2736f3]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

12.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

100m

Dial Color

White

Jewels

35j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1998

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