Seiko Cal. 5621 - 109

This Spring Drive model from 1975 features a 44mm Titanium case. It features a Champagne dial protected by a Sapphire crystal and offers 110m of water resistance. [seikata-wm-6947f1d79593]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

44mm

Case Thickness

13.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Champagne

Jewels

21j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1975

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