Seiko Cal. 3891 - 421

Released in 1997, the Cal. 3891 with design code 421 was part of Seiko's domestic market collection. It features a Navy dial protected by a Hardlex crystal and offers 80m of water resistance. [seikata-wm-5cae60c3ffea]

Also known as: Sumo, Silverwave

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

34mm

Case Thickness

11.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Navy

Jewels

17j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1997

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