Seiko Cal. 5644 - 621

This Solar model from 1977 features a 41mm Stainless Steel case. It features a Champagne dial protected by a Mineral crystal and offers 190m of water resistance. [seikata-wm-c174c6442976]

Also known as: Tuna, Helmet

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

12.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Champagne

Jewels

18j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1977

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