Seiko Cal. 6315 - 522

The Seiko 6315-522 represents an important milestone in Seiko's 1966 lineup. Powered by the 6315 caliber with 21j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-03b53accf829]

Also known as: Bellmatic, Golden Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

43mm

Case Thickness

13.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

180m

Dial Color

White

Jewels

21j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1966

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