Seiko Cal. 3877 - 594

The 3877-594 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3877 caliber with 32j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-4b219b284cb8]

Also known as: Helmet, Bellmatic

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

37mm

Case Thickness

8.1mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

170m

Dial Color

Green

Jewels

32j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1983

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