Seiko Cal. 3877 - 223

The Seiko 3877-223 represents an important milestone in Seiko's 1990 lineup. Powered by the 3877 caliber with 35j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-d912bee8f889]

Also known as: Helmet, Crown

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

11.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Navy

Jewels

35j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1990

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