Seiko Cal. 6657 - 377

This Solar model from 1986 features a 41mm Titanium case. It features a Blue Sunburst dial protected by a Mineral crystal and offers 170m of water resistance. [seikata-wm-5d84961f1d87]

Also known as: Bullhead

Specifications

Movement

Solar

Case Material

Titanium

Case Width

41mm

Case Thickness

8.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1986

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