Seiko Cal. 6627 - 557

This Spring Drive model from 1967 features a 36mm Two-Tone case. It features a Black dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-716cc0af71c5]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

36mm

Case Thickness

15.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Black

Jewels

36j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1967

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