Seiko Cal. 6635 - 230

This Automatic model from 1977 features a 34mm Two-Tone case. It features a Green dial protected by a Mineral crystal and offers 150m of water resistance. [seikata-wm-d5f4e07150b2]

Also known as: Sea Horse, Baby Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

34mm

Case Thickness

13.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Green

Jewels

18j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1977

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