Seiko Cal. 5660 - 371

This Automatic model from 1989 features a 35mm Hardlex-Coated Steel case. It features a White dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-bcd70e318418]

Also known as: Monster, Golden Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

8.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

160m

Dial Color

White

Jewels

33j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1989

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