Seiko Cal. 7191 - 528

The 7191-528 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7191 caliber with 20j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-9bccd802a0cd]

Also known as: Sportsmatic, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

12.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1969

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