Seiko Cal. 6315 - 390

The Seiko 6315-390 represents an important milestone in Seiko's 1973 lineup. Powered by the 6315 caliber with 32j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-59e5bba6fdb8]

Also known as: Monster, UFO

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

8.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

White

Jewels

32j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1973

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