Seiko Cal. 6645 - 478

This Automatic model from 1969 features a 36mm Hardlex-Coated Steel case. It features a White dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-d9f1a6d0362c]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

11.0mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

White

Jewels

33j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1969

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