Seiko Cal. 5641 - 157

This Automatic model from 1970 features a 35mm Titanium case. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-14bface20fb2]

Also known as: Monster, Golden Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

35mm

Case Thickness

12.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1970

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