Seiko Cal. 6398 - 312

The 6398-312 is a sought-after Solar piece from Seiko's golden era. Powered by the 6398 caliber with 21j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-e5ba6b81eab7]

Also known as: Baby Tuna

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

38mm

Case Thickness

10.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

180m

Dial Color

Champagne

Jewels

21j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1978

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