Seiko Cal. 4433 - 540

The 4433-540 is a sought-after Hand-Winding piece from Seiko's golden era. With its 20mm lug width and 9.7mm profile, it sits comfortably on most wrists. [seikata-wm-016b7cd20b68]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

42mm

Case Thickness

9.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

200m

Dial Color

Black

Jewels

26j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1980

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