Seiko Cal. 7165 - 577

The 7165-577 is a sought-after Quartz piece from Seiko's golden era. Powered by the 7165 caliber with 35j jewels beating at 21,600 bph, it delivers a 45 hours power reserve. [seikata-wm-e453bc0c11cd]

Also known as: Tuna, Helmet

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

12.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Navy

Jewels

35j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1978

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