Seiko Cal. 3888 - 939

The 3888-939 is a sought-after Spring Drive piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 150m of water resistance. [seikata-wm-cd0394f129a2]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

9.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1974

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