Seiko Cal. 6616 - 259

The 6616-259 is a sought-after Solar piece from Seiko's golden era. It features a Navy dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-0c87905c1005]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

45mm

Case Thickness

15.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Navy

Jewels

20j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1965

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