Seiko Cal. 5644 - 338

The Seiko 5644-338 represents an important milestone in Seiko's 1976 lineup. Powered by the 5644 caliber with 36j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-20bfcf477a5d]

Also known as: Pogue, UFO

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

36mm

Case Thickness

15.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

White

Jewels

36j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1976

Related Models

• Seiko 4470-906
• Seiko 0716-883
• Seiko 6660-723
• Seiko 4435-472
• Seiko 0715-543
• Seiko 6617-804
• Seiko 6261-241
• Seiko 6217-939
• Seiko 4558-912
• Seiko 6327-598
• Seiko 5227-412
• Seiko 5216-366