Seiko Cal. 7157 - 548

The Seiko 7157-548 represents an important milestone in Seiko's 1978 lineup. With its 21mm lug width and 15.7mm profile, it sits comfortably on most wrists. [seikata-wm-f5bfd688ff83]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

15.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1978

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