Seiko Cal. 5644 - 836

This Hand-Winding model from 1978 features a 40mm Stainless Steel case. It features a Silver dial protected by a Sapphire crystal and offers 170m of water resistance. [seikata-wm-03944816f43e]

Also known as: Pogue, World Timer

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

13.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Silver

Jewels

24j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1978

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