Seiko Cal. 3877 - 172

Released in 1971, the Cal. 3877 with design code 172 was part of Seiko's domestic market collection. It features a Navy dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-6dfcdbc22ec7]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

40mm

Case Thickness

9.0mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

60m

Dial Color

Navy

Jewels

24j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1971

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