Seiko Cal. 3877 - 445

The 3877-445 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3877 caliber with 23j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-7c8100f3e08e]

Also known as: Rally

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

34mm

Case Thickness

11.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1993

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