Seiko Cal. 3816 - 630

The 3816-630 is a sought-after Spring Drive piece from Seiko's golden era. With its 18mm lug width and 10.3mm profile, it sits comfortably on most wrists. [seikata-wm-55953726b237]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

41mm

Case Thickness

10.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

White

Jewels

28j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1990

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