Seiko Cal. 6615 - 745

This Spring Drive model from 1979 features a 34mm Gold-Plated case. It features a Navy dial protected by a Sapphire crystal and offers 120m of water resistance. [seikata-wm-4f279e64de26]

Also known as: Tuna, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

9.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Navy

Jewels

24j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1979

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