Seiko Cal. 5648 - 957

This Hand-Winding model from 1983 features a 35mm Titanium case. It features a Navy dial protected by a Mineral crystal and offers 90m of water resistance. [seikata-wm-a6fb09281d0f]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

35mm

Case Thickness

13.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Navy

Jewels

26j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1983

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