Seiko Cal. 6657 - 315

This Quartz model from 1971 features a 41mm Gold-Plated case. It features a Silver dial protected by a Sapphire crystal and offers 180m of water resistance. [seikata-wm-d236839f95b1]

Also known as: Bellmatic, Navigator

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

14.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Silver

Jewels

33j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1971

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