Seiko Cal. 6315 - 715

This Spring Drive model from 1976 features a 39mm Gold-Plated case. Powered by the 6315 caliber with 32j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-3202a8d8eb31]

Also known as: Tuna, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

15.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

32j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1976

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