Seiko Cal. 5615 - 320

This Spring Drive model from 1983 features a 37mm Two-Tone case. It features a White dial protected by a Mineral crystal and offers 60m of water resistance. [seikata-wm-aaba8a53bed5]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

14.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

60m

Dial Color

White

Jewels

36j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1983

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