Seiko Cal. 6351 - 438

The 6351-438 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6351 caliber with 20j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-fc57fe3dc894]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

35mm

Case Thickness

10.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1979

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