Seiko Cal. 4540 - 448

Released in 1985, the Cal. 4540 with design code 448 was part of Seiko's domestic market collection. With its 20mm lug width and 10.7mm profile, it sits comfortably on most wrists. [seikata-wm-c75fdf348ba6]

Also known as: Tuna, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

10.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

150m

Dial Color

Cream

Jewels

19j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1985

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