Seiko Cal. 5661 - 518

This Quartz model from 1978 features a 35mm Two-Tone case. It features a Champagne dial protected by a Mineral crystal and offers 40m of water resistance. [seikata-wm-76e0c4f54ed7]

Also known as: Sportsmatic, Arnie

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

35mm

Case Thickness

9.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

40m

Dial Color

Champagne

Jewels

24j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1978

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