Seiko Cal. 3891 - 988

The 3891-988 is a sought-after Solar piece from Seiko's golden era. Powered by the 3891 caliber with 30j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-532270ebc131]

Also known as: Silverwave

Specifications

Movement

Solar

Case Material

Titanium

Case Width

37mm

Case Thickness

15.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1992

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