Seiko Cal. 4541 - 954

The Seiko 4541-954 represents an important milestone in Seiko's 1977 lineup. With its 21mm lug width and 15.5mm profile, it sits comfortably on most wrists. [seikata-wm-88f60d4b7415]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

45mm

Case Thickness

15.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

150m

Dial Color

Black

Jewels

28j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1977

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