Seiko Cal. 7183 - 345

The Seiko 7183-345 represents an important milestone in Seiko's 1975 lineup. Powered by the 7183 caliber with 17j jewels beating at 21,600 bph, it delivers a 67 hours power reserve. [seikata-wm-9d4c26fec526]

Also known as: Helmet, UFO

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

12.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Black

Jewels

17j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1975

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