Seiko Cal. 5642 - 540

This Automatic model from 1971 features a 37mm Gold-Plated case. Powered by the 5642 caliber with 32j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-43e3688971e4]

Also known as: Baby Tuna, Arnie

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

11.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Champagne

Jewels

32j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1971

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