Seiko Cal. 6316 - 309

This Automatic model from 1973 features a 35mm PVD Black case. Powered by the 6316 caliber with 32j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-df4de8ac531e]

Also known as: Bellmatic

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

35mm

Case Thickness

14.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

140m

Dial Color

Silver

Jewels

32j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1973

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