Seiko Cal. 6660 - 110

This Hand-Winding model from 1968 features a 45mm PVD Black case. It features a Cream dial protected by a Mineral crystal and offers 60m of water resistance. [seikata-wm-340ac2a0b29a]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

45mm

Case Thickness

10.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Cream

Jewels

23j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1968

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