Seiko Cal. 5666 - 710

This Spring Drive model from 1965 features a 35mm PVD Black case. It features a Green dial protected by a Mineral crystal and offers 70m of water resistance. [seikata-wm-2f07f33cdb59]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

12.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Green

Jewels

34j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1965

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