Seiko Cal. 3820 - 634

The 3820-634 is a sought-after Hand-Winding piece from Seiko's golden era. With its 18mm lug width and 12.7mm profile, it sits comfortably on most wrists. [seikata-wm-08ad9df37b32]

Also known as: Shogun

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

12.7mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

40m

Dial Color

Black

Jewels

25j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1987

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