Seiko Cal. 5644 - 911

This Spring Drive model from 1987 features a 46mm PVD Black case. It features a Burgundy dial protected by a Sapphire crystal and offers 130m of water resistance. [seikata-wm-aa432160b6e5]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

8.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Burgundy

Jewels

32j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1987

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