Seiko Cal. 3840 - 254

The 3840-254 is a sought-after Spring Drive piece from Seiko's golden era. With its 20mm lug width and 15.4mm profile, it sits comfortably on most wrists. [seikata-wm-7f934aa8c839]

Also known as: Panda

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

42mm

Case Thickness

15.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Black

Jewels

35j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1975

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