Seiko Cal. 0724 - 548

The Seiko 0724-548 represents an important milestone in Seiko's 1970 lineup. Powered by the 0724 caliber with 21j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-cded8b391c70]

Also known as: Tuna, Navigator

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

12.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Champagne

Jewels

21j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1970

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