Seiko Cal. 4540 - 125

The 4540-125 is a sought-after Spring Drive piece from Seiko's golden era. With its 22mm lug width and 12.3mm profile, it sits comfortably on most wrists. [seikata-wm-c0f05c277a6b]

Also known as: Baby Tuna, Emperor

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

12.3mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Green

Jewels

19j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1975

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