Seiko Cal. 3855 - 638

The 3855-638 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3855 caliber with 28j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-aa9f67f2bcc0]

Also known as: Samurai, Navigator

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

45mm

Case Thickness

10.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1990

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