Seiko Cal. 3881 - 620

The 3881-620 is a sought-after Solar piece from Seiko's golden era. Powered by the 3881 caliber with 32j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-c03c86e16a58]

Also known as: Navigator

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

11.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Black

Jewels

32j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1991

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