Seiko Cal. 3816 - 455

This Spring Drive model from 1979 features a 37mm Two-Tone case. It features a Navy dial protected by a Mineral crystal and offers 30m of water resistance. [seikata-wm-7c35e7badfcc]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

13.7mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Navy

Jewels

26j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1979

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