Seiko Cal. 0734 - 720

This Spring Drive model from 1987 features a 46mm Hardlex-Coated Steel case. Powered by the 0734 caliber with 26j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-2d244878ceb6]

Also known as: Tuna, Crown

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

9.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

120m

Dial Color

Silver

Jewels

26j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1987

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