Seiko Cal. 3856 - 252

The 3856-252 is a sought-after Spring Drive piece from Seiko's golden era. The Inner Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-cc95ba4a38da]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

9.1mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Green

Jewels

17j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1966

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