Seiko Cal. 6618 - 775

This Spring Drive model from 1977 features a 42mm Stainless Steel case. It features a Green dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-43cb3d31b304]

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

13.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Green

Jewels

29j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1977

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