Seiko Cal. 6654 - 710

This Spring Drive model from 1978 features a 37mm PVD Black case. It features a Navy dial protected by a Sapphire crystal and offers 120m of water resistance. [seikata-wm-a0bada513660]

Also known as: Emperor, Arnie

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

13.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Navy

Jewels

35j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1978

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